“Lockin” indicates a freeze on the shares. SEBI (DIP) Guidelines have stipulated lockin requirements on shares of promoters mainly to ensure that the promoters or main persons who are controlling the company, shall continue to hold some minimum percentage in the company after the public issue. The requirements are detailed in Chapter IV of DIP guidelines. There is lockin on the shares held before IPO and also on shares acquired through preferential allotment route. However there is no lockin on shares/ securities allotted through QIP route. The requirements are detailed in Chapter IV, Chapter XIII and Chapter XIIIA of DIP guidelines.